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Blind

Blind signal detection using the gradual change algorithm

Blind signal detection using the gradual change algorithm

標簽： algorithm detection gradual signal

上傳時間： 2013-12-21

上傳用戶：ls530720646
the Blind signal detection using the various length of the LSCMA algorithm

the Blind signal detection using the various length of the LSCMA algorithm

標簽： the algorithm detection various

上傳時間： 2017-08-10

上傳用戶：wl9454
印刷電路板的過孔設置原則

過孔（via）是多層PCB的重要組成部分之一，鉆孔的費用通常占PCB制板費用的30%到40%。簡單的說來，PCB上的每一個孔都可以稱之為過孔。從作用上看，過孔可以分成兩類：一是用作各層間的電氣連接；二是用作器件的固定或定位。如果從工藝制程上來說，這些過孔一般又分為三類，即盲孔(Blind via)、埋孔(buried via)和通孔(through via)。盲孔位于印刷線路板的頂層和底層表面，具有一定深度，用于表層線路和下面的內層線路的連接，孔的深度通常不超過一定的比率(孔徑)。埋孔是指位于印刷線路板內層的連接孔，它不會延伸到線路板的表面。上述兩類孔都位于線路板的內層，層壓前利用通孔成型工藝完成，在過孔形成過程中可能還會重疊做好幾個內層。第三種稱為通孔，這種孔穿過整個線路板，可用于實現內部互連或作為元件的安裝定位孔。由于通孔在工藝上更易于實現，成本較低，所以絕大部分印刷電路板均使用它，而不用另外兩種過孔。以下所說的過孔，沒有特殊說明的，均作為通孔考慮。

標簽： 印刷電路板過孔

上傳時間： 2013-11-08

上傳用戶：chenhr
基于C8051F310的山路轉彎預防警示系統

針對盤山路存在的轉彎盲區，即在轉彎時司機無法得知彎路對面是否有車輛通過，設計一種基于C8051F310的山路轉彎預防警示系統。該系統利用一階濾波算法檢測山路轉彎時是否有車輛通過。運用該算法可增強系統檢測的實時性，提高檢測機動車輛的靈敏度，同時大大減少環境溫度對檢測的干擾。試驗表明該系統能夠正確指示出在山路轉彎時是否有車輛通過，目前該系統已安裝在盤山路上，可大大減少事故的發生率。 Abstract: Aiming at passing hilly road，there is a turn Blind spot.Motormen usually do not know if the passing of vehicles pass the road.So a system of defending accident on hilly road is designed,which is based on MCU C8051F310.The sys-tem uses the first-order filter algorithm to detect whether there are passing vehicles.This algorithm enhances the real-time detection and improves the sensitivity of detection vehicles.Meanwhile,it reduces the detection interference of environmen-tal temperature.The experimental results show that this system can exactly indicate if there are passing vehicles.At present,the system has been successfully applied to hilly road.The system can greatly decrease accident.

標簽： C8051F310 轉彎

上傳時間： 2013-10-10

上傳用戶：歸海惜雪
印刷電路板的過孔設置原則

過孔（via）是多層PCB的重要組成部分之一，鉆孔的費用通常占PCB制板費用的30%到40%。簡單的說來，PCB上的每一個孔都可以稱之為過孔。從作用上看，過孔可以分成兩類：一是用作各層間的電氣連接；二是用作器件的固定或定位。如果從工藝制程上來說，這些過孔一般又分為三類，即盲孔(Blind via)、埋孔(buried via)和通孔(through via)。盲孔位于印刷線路板的頂層和底層表面，具有一定深度，用于表層線路和下面的內層線路的連接，孔的深度通常不超過一定的比率(孔徑)。埋孔是指位于印刷線路板內層的連接孔，它不會延伸到線路板的表面。上述兩類孔都位于線路板的內層，層壓前利用通孔成型工藝完成，在過孔形成過程中可能還會重疊做好幾個內層。第三種稱為通孔，這種孔穿過整個線路板，可用于實現內部互連或作為元件的安裝定位孔。由于通孔在工藝上更易于實現，成本較低，所以絕大部分印刷電路板均使用它，而不用另外兩種過孔。以下所說的過孔，沒有特殊說明的，均作為通孔考慮。

標簽： 印刷電路板過孔

上傳時間： 2013-11-06

上傳用戶：gaoliangncepu
互信息盲源分離

互信息盲源分離，這基于這么一個事實，混合信號的互信息最小時，意味著信號獨立。可以參考有關書籍。在google里面，搜索mutual information Blind source separation.即可搜到文章。

標簽： 盲源分離

上傳時間： 2014-07-20

上傳用戶：2404
Make and answer phone calls Detect tone and pulse digit from the phone line Capture Caller ID

Make and answer phone calls Detect tone and pulse digit from the phone line Capture Caller ID Support Blind transfer, single-step transfer/conference, consultation transfer/conference, hold, unhold. Control of the local phone handset, microphone and speaker of the modem Send and receive faxes Play and record on the phone line or sound card Play music in background mode Silence detection VU Meter Wave sound editor that allows your end-users to edit their own sound files. Voice recognition and voice synthesis. Full control over the serial port device ZModem file transfer utility File compression and encryption utility

標簽： phone and Capture Detect

上傳時間： 2013-11-30

上傳用戶：水中浮云
ICA介紹課件。There has been a wide discussion about the application of Independence Component Analysis (I

ICA介紹課件。There has been a wide discussion about the application of Independence Component Analysis (ICA) in Signal Processing, Neural Computation and Finance, first introduced as a novel tool to separate Blind sources in a mixed signal. The Basic idea of ICA is to reconstruct from observation sequences the hypothesized independent original sequences

標簽： Independence application discussion Component

上傳時間： 2016-01-12

上傳用戶：AbuGe
Introduction+to+RF+Propagation

With the rapid expansion of wireless consumer products,there has been a con- siderable increase in the need for radio-frequency (RF) planning, link plan- ning, and propagation modeling.A network designer with no RF background may find himself/herself designing a wireless network. A wide array of RF planning software packages can provide some support, but there is no substi- tute for a fundamental understanding of the propagation process and the lim- itations of the models employed. Blind use of computer-aided design (CAD) programs with no understanding of the physical fundamentals underlying the process can be a recipe for disaster. Having witnessed the results of this approach, I hope to spare others this frustration.

標簽： Introduction Propagation to RF

上傳時間： 2020-05-27

上傳用戶：shancjb
Smart Grid Security

The field of cyber security, or information security, or information assurance, depending on your preference, is an interdisciplinary one. It is part computer science, part statistics, part psychology, part law, and a part of many other fields. Moreover, any cyber security practi- tioner needs to know what he or she is protecting and where to pri- oritize. Just as someone should not spend $100 to protect something worth $10, one cannot be Blind to the other disciplines.

標簽： Security Smart Grid

上傳時間： 2020-06-07

上傳用戶：shancjb

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Blind

Blind signal detection using the gradual change algorithm

the Blind signal detection using the various length of the LSCMA algorithm

印刷電路板的過孔設置原則

基于C8051F310的山路轉彎預防警示系統

印刷電路板的過孔設置原則

互信息盲源分離

Make and answer phone calls Detect tone and pulse digit from the phone line Capture Caller ID

ICA介紹課件。There has been a wide discussion about the application of Independence Component Analysis (I

Introduction+to+RF+Propagation

Smart Grid Security